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gst: share the core between connections

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Make all sources in the same process with the same fd share the
connection to the server. This makes it possible to set the same
fd on multiple sources/sinks and have them all use the same
connection, like when capturing multiple monitors from screencast
with the portal.

Fixes #241
This commit is contained in:
Wim Taymans 2020-07-13 17:42:09 +02:00
parent ba96eecba0
commit 70652d1a37
7 changed files with 328 additions and 188 deletions
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58
src/gst/gstpipewirecore.h Normal file
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/* GStreamer
*
* Copyright © 2020 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __GST_PIPEWIRE_CORE_H__
#define __GST_PIPEWIRE_CORE_H__
#include <gst/gst.h>
#include <pipewire/pipewire.h>
G_BEGIN_DECLS
typedef struct _GstPipeWireCore GstPipeWireCore;
/**
* GstPipeWireCore:
*
* Opaque data structure.
*/
struct _GstPipeWireCore {
gint refcount;
int fd;
struct pw_thread_loop *loop;
struct pw_context *context;
struct pw_core *core;
struct spa_hook core_listener;
int last_error;
int last_seq;
int pending_seq;
};
GstPipeWireCore *gst_pipewire_core_get (int fd);
void gst_pipewire_core_release (GstPipeWireCore *core);
G_END_DECLS
#endif /* __GST_PIPEWIRE_CORE_H__ */